To hold a nearly flat article so that it is immovable in a container, by bending a tape-like portion along the corner of the article and holding the corner of the article, and by bonding a fixing part to the bottom part of the container so as to press the article to the two sidewalls of a container main body.

The container 10 comprises a tray-like main body 11 and a cover 19 put on the main body. A bundle 20 of sheets is placed on the bottom part 12 of the main body 11 and pressed to the sidewalls 15 and 16 of the main body 11. Then, the tape portions 31 of a fixing member 30 are bent along the corner 21 of the bundle 20 of sheets, the shaded portions 32a and 33a of the portions 32 and 33 of the fixing member 30 are each bonded to the bottom part 12, and lastly the cover 19 is put over the main body 11. In the case, the fixing member 30 can securely be bonded to the bottom part 12, by bonding the fixing member 30 onto the bottom part 12 by the use of a positioning gauge, then by placing the bundle 20 of sheets onto the bottom part 12, by inserting the corner 21 of the bundle 20 of sheets into a space beneath the portion 34 of the fixing member 30, and by pressing the bundle 20 of sheets to the sidewalls 15 and 16.